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Merge remote-tracking branch 'Z3Prover/polysat' into polysat

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Clemens Eisenhofer 2022-12-25 12:41:39 +01:00
commit 74ec28201e
41 changed files with 2206 additions and 661 deletions
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12
src/math/polysat/constraint.h
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@ -51,7 +51,7 @@ namespace polysat {
/** The boolean variable associated to this constraint */
sat::bool_var m_bvar = sat::null_bool_var;
constraint(constraint_manager& m, ckind_t k): m_kind(k) {}
constraint(ckind_t k): m_kind(k) {}
public:
virtual ~constraint() {}
@ -115,9 +115,11 @@ namespace polysat {
bool is_pwatched() const { return m_is_pwatched; }
void set_pwatched(bool f) { m_is_pwatched = f; }
/// Assuming the constraint is univariate under the current assignment of 's',
/// adds the constraint to the univariate solver 'us'.
virtual void add_to_univariate_solver(solver& s, univariate_solver& us, unsigned dep, bool is_positive) const = 0;
/**
* If the constraint is univariate in variable 'v' under the current assignment of 's',
* add the constraint to the univariate solver 'us'.
*/
virtual void add_to_univariate_solver(pvar v, solver& s, univariate_solver& us, unsigned dep, bool is_positive) const = 0;
};
inline std::ostream& operator<<(std::ostream& out, constraint const& c) { return c.display(out); }
@ -162,7 +164,7 @@ namespace polysat {
void narrow(solver& s, bool first) { get()->narrow(s, is_positive(), first); }
clause_ref produce_lemma(solver& s, assignment const& a) { return get()->produce_lemma(s, a, is_positive()); }
void add_to_univariate_solver(solver& s, univariate_solver& us, unsigned dep) const { get()->add_to_univariate_solver(s, us, dep, is_positive()); }
void add_to_univariate_solver(pvar v, solver& s, univariate_solver& us, unsigned dep) const { get()->add_to_univariate_solver(v, s, us, dep, is_positive()); }
unsigned_vector const& vars() const { return m_constraint->vars(); }
unsigned var(unsigned idx) const { return m_constraint->var(idx); }